The articles’ main observation is that the evolution of athletes’ bodies have “been propelled by the laws of physics.” Athletes’ bodies are more athletic, muscular and toned than they were in the past. Better physiques influence their success.

For example, let’s look at sprinters. According to the article:

“Sprinting is basically a controlled forward fall. Runners with higher centers of gravity can fall forward faster — and the taller you are, the higher your center of gravity.”

That can partly explain why the 6’5 Usain Bolt sped to Olympic victory.

By contrast gymnasts are some of the smallest athletes at the games. That is for good reason. It’s easier for tiny figures to flip, twist and propel into the air.